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American Physical Society, Physical Review Letters, 9(107)

DOI: 10.1103/physrevlett.107.096802

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Large Tunable Rashba Spin Splitting of a Two-Dimensional Electron Gas inBi2Se3

Journal article published in 2011 by P. D. C. King, R. C. Hatch, M. Bianchi ORCID, R. Ovsyannikov, C. Lupulescu, G. Landolt, B. Slomski, J. H. Dil, D. Guan, J. L. Mi, E. D. L. Rienks, J. Fink ORCID, A. Lindblad ORCID, S. Svensson, S. Bao and other authors.
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

We report a Rashba spin splitting of a two-dimensional electron gas in the topological insulator Bi(2)Se(3) from angle-resolved photoemission spectroscopy. We further demonstrate its electrostatic control, and show that spin splittings can be achieved which are at least an order-of-magnitude larger than in other semiconductors. Together these results show promise for the miniaturization of spintronic devices to the nanoscale and their operation at room temperature.